Breitbart, the hard-right news service once headed by White House Chief Counsel Steve Bannon, is facing an advertiser exodus in the face of growing opposition to the site’s promotion of racist and misogynistic content. More than 800 advertisers worldwide have abandoned the site, according to reports.

Under Bannon’s tenure the Web site frequently published stories that promoted the so-called “alt-right,” the conservative movement associated with the Ku Klux Klan, neo-Nazis and other far-right hate groups.

A group called “Sleeping Giants,” which is organizing efforts to call attention to Breitbart’s content, told London’s Independent newspaper that 818 companies have pledged to pull their advertising from the site.

Cereal maker Kelloggs became one of the first companies to pull their ads from the hard-right propaganda outlet in November.

The maker of such well-known cereals as Corn Flakes, Raisin Bran and Rice Krispies cited Breitbart’s promotion of racist, anti-Semitic, and misogynistic content as the reason for the move.

Since then, they have been joined by such well-known companies as BMW, Visa, T-Mobile, Nordstrom and Lufthansa.

Lufthansa said Breitbart’s “violent, sexist, extremist and radical political content” were the reasons behind its decision.

Also among the list of advertisers are two Canadian universities.

Others are likely to follow after Trump threatened to pull federal funds from the University of California, Berkeley, over protests that blocked a speech by Breitbart editor Milo Yiannopoulos.

Campaigners are confident the backlash is snowballing, according to The Independent.

SumOfUs, another group leading a boycott campaign is targeting third-party ad agencies like Amazon and Google. Both run their own ad networks.

“If Google stops engaging with Breitbart that would be a really big step as a lot of advertising wouldn’t appear on the site,” Emma Pullman, lead campaign strategist for SumOfUs told the British newspaper.

More than 300,000 people have signed a petition urging Amazon to stop doing business with the Web site.

Check out a full list of the advertisers who have joined the boycott below.

Keith Girard has 30 years of experience as an award-winning reporter, editor-in-chief, and senior media executive. Keith’s career began in Washington, D.C., where he was a reporter for The Washington Post and a contributing editor for Regardie's and Washingtonian magazines. He also worked as a writer/producer in CNN's Washington Bureau and has written one book on the U.S. Marines in the Gulf War.